public class A_Z_Print  implements  Runnable {
    @Override
    public void run() {
        for (char i = 'a'; i <='z' ; i++) {
            System.out.println(Thread.currentThread().getName()+"打印："+i);
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}
